drivers/media/platform/vsp1/vsp1.h

   1 /*
   2  * vsp1.h  --  R-Car VSP1 Driver
   3  *
   4  * Copyright (C) 2013-2014 Renesas Electronics Corporation
   5  *
   6  * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  */
  13 #ifndef __VSP1_H__
  14 #define __VSP1_H__
  15
  16 #include <linux/io.h>
  17 #include <linux/list.h>
  18 #include <linux/mutex.h>
  19
  20 #include <media/media-device.h>
  21 #include <media/v4l2-device.h>
  22 #include <media/v4l2-subdev.h>
  23
  24 #include "vsp1_regs.h"
  25
  26 struct clk;
  27 struct device;
  28
  29 struct vsp1_platform_data;
  30 struct vsp1_bru;
  31 struct vsp1_hsit;
  32 struct vsp1_lif;
  33 struct vsp1_lut;
  34 struct vsp1_rwpf;
  35 struct vsp1_sru;
  36 struct vsp1_uds;
  37
  38 #define VSP1_MAX_RPF            5
  39 #define VSP1_MAX_UDS            3
  40 #define VSP1_MAX_WPF            4
  41
  42 #define VSP1_HAS_LIF            (1 << 0)
  43 #define VSP1_HAS_LUT            (1 << 1)
  44 #define VSP1_HAS_SRU            (1 << 2)
  45
  46 struct vsp1_platform_data {
  47         unsigned int features;
  48         unsigned int rpf_count;
  49         unsigned int uds_count;
  50         unsigned int wpf_count;
  51 };
  52
  53 struct vsp1_device {
  54         struct device *dev;
  55         struct vsp1_platform_data pdata;
  56
  57         void __iomem *mmio;
  58         struct clk *clock;
  59
  60         struct mutex lock;
  61         int ref_count;
  62
  63         struct vsp1_bru *bru;
  64         struct vsp1_hsit *hsi;
  65         struct vsp1_hsit *hst;
  66         struct vsp1_lif *lif;
  67         struct vsp1_lut *lut;
  68         struct vsp1_rwpf *rpf[VSP1_MAX_RPF];
  69         struct vsp1_sru *sru;
  70         struct vsp1_uds *uds[VSP1_MAX_UDS];
  71         struct vsp1_rwpf *wpf[VSP1_MAX_WPF];
  72
  73         struct list_head entities;
  74
  75         struct v4l2_device v4l2_dev;
  76         struct media_device media_dev;
  77 };
  78
  79 int vsp1_device_get(struct vsp1_device *vsp1);
  80 void vsp1_device_put(struct vsp1_device *vsp1);
  81
  82 static inline u32 vsp1_read(struct vsp1_device *vsp1, u32 reg)
  83 {
  84         return ioread32(vsp1->mmio + reg);
  85 }
  86
  87 static inline void vsp1_write(struct vsp1_device *vsp1, u32 reg, u32 data)
  88 {
  89         iowrite32(data, vsp1->mmio + reg);
  90 }
  91
  92 #endif /* __VSP1_H__ */